./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b20f0362d47fb0eca5e2e50905980195c4017e92 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:57:10,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:10,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:10,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:10,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:10,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:10,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:10,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:10,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:10,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:10,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:10,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:10,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:10,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:10,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:10,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:10,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:10,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:10,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:10,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:10,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:10,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:10,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:10,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:10,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:10,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:10,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:10,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:10,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:10,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:10,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:10,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:10,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:10,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:10,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:10,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:10,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:10,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:10,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:10,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:10,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:10,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:57:10,920 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:10,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:10,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:10,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:10,931 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:10,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:10,932 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:57:10,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:10,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:57:10,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:10,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:57:10,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:57:10,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:57:10,933 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:57:10,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:10,934 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:10,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:57:10,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:10,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:10,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:57:10,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:57:10,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:57:10,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:10,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:57:10,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:57:10,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:10,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:57:10,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:57:10,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b20f0362d47fb0eca5e2e50905980195c4017e92 [2019-11-25 08:57:11,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:11,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:11,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:11,120 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:11,120 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:11,121 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i [2019-11-25 08:57:11,176 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/data/55ac5d5ed/9b58aa6305e048f9a20f21bcbd956cc9/FLAGd1b569dd9 [2019-11-25 08:57:11,678 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:11,679 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i [2019-11-25 08:57:11,693 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/data/55ac5d5ed/9b58aa6305e048f9a20f21bcbd956cc9/FLAGd1b569dd9 [2019-11-25 08:57:12,008 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/data/55ac5d5ed/9b58aa6305e048f9a20f21bcbd956cc9 [2019-11-25 08:57:12,011 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:12,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:12,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:12,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:12,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:12,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:12" (1/1) ... [2019-11-25 08:57:12,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7beeee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12, skipping insertion in model container [2019-11-25 08:57:12,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:12" (1/1) ... [2019-11-25 08:57:12,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:12,080 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:12,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:12,452 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:12,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:12,582 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:12,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12 WrapperNode [2019-11-25 08:57:12,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:12,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:12,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:12,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:12,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12" (1/1) ... [2019-11-25 08:57:12,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12" (1/1) ... [2019-11-25 08:57:12,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:12,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:12,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:12,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:12,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12" (1/1) ... [2019-11-25 08:57:12,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12" (1/1) ... [2019-11-25 08:57:12,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12" (1/1) ... [2019-11-25 08:57:12,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12" (1/1) ... [2019-11-25 08:57:12,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12" (1/1) ... [2019-11-25 08:57:12,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12" (1/1) ... [2019-11-25 08:57:12,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12" (1/1) ... [2019-11-25 08:57:12,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:12,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:12,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:12,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:12,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:57:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:57:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:57:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:57:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:57:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:57:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:57:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:57:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:57:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:57:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:57:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:57:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:12,736 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:57:13,064 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:13,065 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:57:13,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:13 BoogieIcfgContainer [2019-11-25 08:57:13,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:13,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:57:13,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:57:13,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:57:13,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:57:12" (1/3) ... [2019-11-25 08:57:13,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51626464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:13, skipping insertion in model container [2019-11-25 08:57:13,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:12" (2/3) ... [2019-11-25 08:57:13,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51626464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:13, skipping insertion in model container [2019-11-25 08:57:13,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:13" (3/3) ... [2019-11-25 08:57:13,073 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2019-11-25 08:57:13,114 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,114 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,115 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,115 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,115 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,115 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,116 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,116 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,116 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,116 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,116 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,116 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,117 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,117 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,117 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,117 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,118 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,118 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,118 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,118 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,118 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,118 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,119 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,119 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,119 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,119 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,120 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,120 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,120 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,120 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,120 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,121 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,121 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,121 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,121 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,121 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,122 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,122 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,122 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,122 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,122 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,123 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,123 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,123 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,123 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,123 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,124 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,124 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,124 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,124 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,124 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,124 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,125 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,125 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:57:13,150 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:57:13,150 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:57:13,157 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:57:13,167 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:57:13,183 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:57:13,183 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:57:13,183 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:57:13,183 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:13,183 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:13,184 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:57:13,184 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:13,184 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:57:13,194 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-25 08:57:13,335 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-11-25 08:57:13,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-11-25 08:57:13,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-25 08:57:13,356 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:13,357 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:13,358 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:13,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:13,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1332391185, now seen corresponding path program 1 times [2019-11-25 08:57:13,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:13,371 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132044487] [2019-11-25 08:57:13,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:13,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:13,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132044487] [2019-11-25 08:57:13,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:13,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:57:13,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553818878] [2019-11-25 08:57:13,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:57:13,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:13,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:57:13,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:57:13,685 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-11-25 08:57:13,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:13,770 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-11-25 08:57:13,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:57:13,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-25 08:57:13,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:13,800 INFO L225 Difference]: With dead ends: 1295 [2019-11-25 08:57:13,800 INFO L226 Difference]: Without dead ends: 601 [2019-11-25 08:57:13,805 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:57:13,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-11-25 08:57:13,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-11-25 08:57:13,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-11-25 08:57:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-11-25 08:57:13,900 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-11-25 08:57:13,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:13,900 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-11-25 08:57:13,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:57:13,900 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-11-25 08:57:13,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-25 08:57:13,904 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:13,904 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:13,904 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:13,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:13,905 INFO L82 PathProgramCache]: Analyzing trace with hash 2126230951, now seen corresponding path program 1 times [2019-11-25 08:57:13,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:13,905 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318924387] [2019-11-25 08:57:13,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:14,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:14,063 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318924387] [2019-11-25 08:57:14,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:14,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:57:14,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251903770] [2019-11-25 08:57:14,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:57:14,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:14,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:57:14,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:57:14,066 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-11-25 08:57:14,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:14,159 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-11-25 08:57:14,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:57:14,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-25 08:57:14,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:14,169 INFO L225 Difference]: With dead ends: 601 [2019-11-25 08:57:14,169 INFO L226 Difference]: Without dead ends: 538 [2019-11-25 08:57:14,173 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:57:14,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-25 08:57:14,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-25 08:57:14,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-25 08:57:14,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-11-25 08:57:14,211 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-11-25 08:57:14,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:14,211 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-11-25 08:57:14,211 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:57:14,211 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-11-25 08:57:14,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:57:14,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:14,216 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:14,216 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:14,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:14,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1457325479, now seen corresponding path program 1 times [2019-11-25 08:57:14,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:14,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068437536] [2019-11-25 08:57:14,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:14,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:14,393 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068437536] [2019-11-25 08:57:14,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:14,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:57:14,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024144748] [2019-11-25 08:57:14,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:57:14,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:14,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:57:14,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:57:14,395 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-11-25 08:57:14,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:14,476 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-11-25 08:57:14,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:57:14,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-25 08:57:14,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:14,479 INFO L225 Difference]: With dead ends: 403 [2019-11-25 08:57:14,479 INFO L226 Difference]: Without dead ends: 349 [2019-11-25 08:57:14,480 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:57:14,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-11-25 08:57:14,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-11-25 08:57:14,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-25 08:57:14,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-11-25 08:57:14,493 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-11-25 08:57:14,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:14,493 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-11-25 08:57:14,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:57:14,494 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-11-25 08:57:14,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-25 08:57:14,495 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:14,495 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:14,496 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:14,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:14,496 INFO L82 PathProgramCache]: Analyzing trace with hash -706836169, now seen corresponding path program 1 times [2019-11-25 08:57:14,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:14,497 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419435799] [2019-11-25 08:57:14,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:14,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:14,621 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419435799] [2019-11-25 08:57:14,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:14,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:57:14,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069696340] [2019-11-25 08:57:14,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:57:14,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:14,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:57:14,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:57:14,623 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-11-25 08:57:14,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:14,763 INFO L93 Difference]: Finished difference Result 565 states and 1500 transitions. [2019-11-25 08:57:14,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:57:14,764 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-25 08:57:14,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:14,767 INFO L225 Difference]: With dead ends: 565 [2019-11-25 08:57:14,767 INFO L226 Difference]: Without dead ends: 322 [2019-11-25 08:57:14,768 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:57:14,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2019-11-25 08:57:14,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2019-11-25 08:57:14,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2019-11-25 08:57:14,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 846 transitions. [2019-11-25 08:57:14,782 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 846 transitions. Word has length 34 [2019-11-25 08:57:14,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:14,782 INFO L462 AbstractCegarLoop]: Abstraction has 322 states and 846 transitions. [2019-11-25 08:57:14,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:57:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 846 transitions. [2019-11-25 08:57:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-25 08:57:14,784 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:14,784 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:14,784 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:14,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:14,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1572722609, now seen corresponding path program 2 times [2019-11-25 08:57:14,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:14,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460450378] [2019-11-25 08:57:14,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:14,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460450378] [2019-11-25 08:57:14,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:14,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:57:14,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624848485] [2019-11-25 08:57:14,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:57:14,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:14,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:57:14,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:57:14,951 INFO L87 Difference]: Start difference. First operand 322 states and 846 transitions. Second operand 7 states. [2019-11-25 08:57:15,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:15,161 INFO L93 Difference]: Finished difference Result 493 states and 1326 transitions. [2019-11-25 08:57:15,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:57:15,165 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-25 08:57:15,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:15,168 INFO L225 Difference]: With dead ends: 493 [2019-11-25 08:57:15,168 INFO L226 Difference]: Without dead ends: 301 [2019-11-25 08:57:15,168 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:57:15,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2019-11-25 08:57:15,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2019-11-25 08:57:15,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2019-11-25 08:57:15,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 792 transitions. [2019-11-25 08:57:15,180 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 792 transitions. Word has length 34 [2019-11-25 08:57:15,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:15,181 INFO L462 AbstractCegarLoop]: Abstraction has 301 states and 792 transitions. [2019-11-25 08:57:15,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:57:15,182 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 792 transitions. [2019-11-25 08:57:15,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-25 08:57:15,183 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:15,183 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:15,183 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:15,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:15,184 INFO L82 PathProgramCache]: Analyzing trace with hash -2092465685, now seen corresponding path program 3 times [2019-11-25 08:57:15,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:15,184 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929024053] [2019-11-25 08:57:15,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:15,347 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929024053] [2019-11-25 08:57:15,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:15,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:57:15,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558185466] [2019-11-25 08:57:15,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:57:15,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:15,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:57:15,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:57:15,348 INFO L87 Difference]: Start difference. First operand 301 states and 792 transitions. Second operand 8 states. [2019-11-25 08:57:15,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:15,464 INFO L93 Difference]: Finished difference Result 247 states and 630 transitions. [2019-11-25 08:57:15,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:57:15,464 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-25 08:57:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:15,464 INFO L225 Difference]: With dead ends: 247 [2019-11-25 08:57:15,465 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:57:15,465 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:57:15,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:57:15,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:57:15,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:57:15,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:57:15,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-25 08:57:15,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:15,466 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:15,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:57:15,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:57:15,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:57:15,469 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:57:15,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:57:15 BasicIcfg [2019-11-25 08:57:15,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:57:15,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:15,478 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:15,478 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:15,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:13" (3/4) ... [2019-11-25 08:57:15,484 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:57:15,492 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:57:15,492 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:57:15,492 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:57:15,507 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-25 08:57:15,522 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:57:15,522 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:57:15,568 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7bcc786e-aa47-4e8c-9788-4aede315e041/bin/uautomizer/witness.graphml [2019-11-25 08:57:15,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:15,570 INFO L168 Benchmark]: Toolchain (without parser) took 3557.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -131.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:15,571 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:15,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:15,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:15,573 INFO L168 Benchmark]: Boogie Preprocessor took 25.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:15,573 INFO L168 Benchmark]: RCFGBuilder took 386.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:15,574 INFO L168 Benchmark]: TraceAbstraction took 2404.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -4.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:15,574 INFO L168 Benchmark]: Witness Printer took 90.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:15,578 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 570.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 386.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2404.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -4.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 90.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 90 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 294 SDtfs, 385 SDslu, 782 SDs, 0 SdLazy, 121 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 18438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...